Torque transmitting mechanical coupling



April. 1940- s. s. cooK ET AL. 2,197,070

TORQUE TRANSMITTING MECHANICAL COUPLING Filed Nov. 16, 1938 Y r 62 0 E9148 F I Pb Fig.4;

4 MW M 5" ATTORNEYS Patented Apr. 16, 1940 "UNITED; STA ES PAT T NOFFICE TORQUE TRANSMITTING MECHANICAL I COUPLING I Stanley Smith Cook and Louis Mortimer Douglas, Wallsend-on-Tyne, England, assignors to The Parsons Marine Steam Turbine Company, Limited, Wallsend-on-Tyne, England Application November 16, 1938, Serial No. 240,624 In. Great Britain November 22, 1937 1 Claim. (01. 64-9) The invention relates to torque transmitting mechanical couplings connecting a driving with a driven element and has as its main object to provide a coupling capable of transmitting a con- I siderable torque whilst allowing'for a certain de-- gree of want of alignment between driving and driven elements'in addition to freedom of relative axial movement, the coupling also being capable of ready assembly and dismantling. I The present invention consists in a mechanical coupling comprising an open ended driving mem-,

ber, a set of projections thereon, an open ended driven member, a set of projections thereon disposed in a plane at right angles to the plane containing the other set, said driving members and driven members being mutually interdisposed, an

encircling member forsaid driving and driven members, internal grooves on said, encircling member co-acting with said sets of projections and ties between the open ends of said driving and driven members. I

Referring to the accompanying diagrammatic drawing:

Figure-l shows, as regards the upper half, an

elevation of one arrangement of coupling embodying the present invention; this figure also shows,

1 as regards the lower half, a section on the line sets of projections [0, H and l2, 13' are provided, I these being co-lateral and occupying substantially the full length of the coupling.

The members I4, l5 carrying projections lfl and II respectively take the form in cross-section of two oppositely-disposed quadrants, each quadrant being integral with a semi-circular flange; These flanges l8, [9 are bolted to a flange 20 on the driving shaft a and the quadrant members l4, l5 are interdisposed in relation to further members l6,

l1 carrying the projections I2, l3. Members l6 of a strap or tie 22.

' 23 and 2 1 are provided at the flanged ends..;

coupling above described may be varied without and ll are disposed, with relation to the driven shaft 2), in the same way as members 14 and i5,

.with relation to the. driving shaft a.

The open ends of the members l4, l5 are tied, 5

in orderto make the structure more rigid by 1 means of a strap or tie 2| whilst the openends of the members It, i! are similarly tied by means For simplicity in assembly and alignmentties The projections engagenotches formed in an annular member 25 each notch having a hole 26; for enabling discharge of oil to take place.

The size, number and dispositionof the drain holes 726 may be varied to suit conditions of operation.

Oil is conveyed to the interior of the annular member 25 by way of. flanged members z'l which receive oil from the shaft bearings 0 and p and feed the, oil through holes 28 to further flanged members ber 25.

36, 3| bolted to the ends of the mem- C'ouplingsas described "above are capable of transmitting torque of considerable magnitude between the driving and driven elements while 25 providing longitudinal freedom between them and also a certain degree of freedom of angular move-,

. ment in anyplane passing through their axes. Y.

'The precise form of thestructural details of the exceeding the scope of the invention Weclaim; I A mechanical coupling comprising an open ended driving member, a set of projections thereon, an open ended driven member, a set of projectionsthereon disposed in a plane at right angles to the planecontaining the other set, said driving I members and driven members being mutually interdisposed, an encircling member for said driving and driven members, internal grooves on said encircling member co-acting with said sets of pro- I IP- J'ections and ties between the open ends of said driving and driven members.

STANLEY SMITH cools LOUIS, MOR'I'IMER DOUGLAS. 

